Conveying system.



PATENTED JULY 1U, 1906.

R. B. GREEN.

CONVEYING SYSTEM.

APPLwAmoN FILED APR. e. woe

IN VEN TOR A TTOR/VEY Wi TNESES rinl uniformly to the conveyors.

RUTGER B. GREEN, OF D TROIT, MICHIGAN.

CONVEYING SYSTEM.

Specification of Letters Patent.

Patertecl July 10, 1906.

Application hnl April E, 1906. Serial En. 310.302),

To will. wlmm, it may oomwv'u.:

Bo it known that I, liv'ron B. GREEN, aal

citizen of the United States, residing in Dei tionnlly in the drawing and may be of troit, in the county of W'nyne and Slate of Michigan, have invented certain new and useful Iinproveinvntn in Conveying Systems, of which the following is n speoilirntion, reference being luid to the nooolnpnnying drowinfrs.

i'y invention relates to improvements in systems for conveying material stored in hulk, such as coal, oro, grain, und the likei An object of my invention is to provide menus for maintaining a pan'tiztl vncuuxn or plenum in e subway in whirli is loreted oonveying apparatus henenth n coul pile sind in n piie system through the subway and cool pi e the coal pile and is fitted with nifntnnpsor blowers and with air-tight rlonnrifs nt its sides, bottoni, and enn. By theze ineens nir is drown down or forced up through ipes in the pile of materiel and serves to eoonnd dry the motorini und prevent spontnneous combustion. By' placing a thermometer in the current of nir which posses through and from any pipe in the pile the temperature of the pile muy he determined at that point and timely warning obtained of a. too vreet rise in temperature. Further, in ente tie inate rial heroines arched" over the hoppers lending; to the f'onveyinf; lpperntus the greater preesure of the outside nir will tend to breek down the nrch and to feed the ninte- When wol-lonen are in the subway, as in oase of making repaire, inspection of machinery, cleaning, and the like, the blowers; may he used for purposes of ventilation Another object of my invention is to provide means for flooding pipes in or under the enalpile with witter for thepurpose of quentin ing e. fire, as in the ense of spontaneous cornbustion.

[n the drawings illustrating the principle of my invention and the beet mode now known to nie of applying that principle, Fig-Y ure 1 is a diagrmnnmtic View of a conveying syst-ein, the subway bein shown in transveree sectional view; and ig. 2 is a longitudinal seetionol View through the subway. 3 is a det/oil sectional view. Y Y

he subway a runs under the piie b of eoe, grain, ore, or like materiel stored in bulk and is provided at its top with the hoppers c,V

The subway run` beneath the bottomet forced into the suhwny,

through which the material is fed to the conveying npparsltus d, which is shown convenany of the :tp )roved typoS now found uponthe market. he sides m, ends n, and bottom o of the subway ere nir-tight when the eonveyer is not running.

Y Running into the subwmY a is n short pipe e, which is connected wit an nir-pump (Shown diegrnnunatioally in the drnwings.) The'oonneotions between the nir-pump f and the pipe e are such that air may be exhausted through the pipe e from the Subway o, or the operation may be reverted finti Y:tir nitty be as for ventilation, when the conveyors are not in use and workmen are in the Subway* impacting, repairing, or cleaning the -maoliiner f therein. Running up into the coal pileA reni points along the roof p of the subway ere pipes i, erfornted above the subway-well and tight lielow it anni having valved connections s to the wa,- ter-pipe k and each having a valve z at its lower end y, which projects into the subway. This allows the ipes to he individually Shut on or off from t ie general circulation of air maintained by the air-pump f through the subway and noel pile. These pipes i may have a flexible joint :s just above the subwayroof to prevent their breaking under settlement in the coal pile.

When the nir-pump f is used to exhaust nir from the subway a, a thermometer 'g (see Fig. 3l may be placed in one of the pipes i in order to determine the temperature of the oir drown throu lfh the pile b and so tirneljr warning may be 1nd of en undue rise of ternporature in the material of the pile, which might lend to spontnneousv combustion. F urther, the )tissage of the nir through the mnteriel temls to cool :ind to dry it, and thus to insure dry meteml being furnished and to prevent spontaneous combustion. The nirpressure existing all through the ile (and in ease the pile is covered with fi. tliin coating of ioe then upon the ontsitie of the pile) tends to break down any arch formed in the ile over the hoppers and to @enea the matera to be fed uniformly from the bottom of the pilr, insuring uniformity of supply both ns to quality and dr ess, and insuring, also, uni infinity of supp y as to the degree of weathering or change produeed byex usure to the elements of the atmosphere an meteorologial influences.

In order to provide means for flooding the IOO IOS

they may not interfere with the conveyers when the latter are running.

1. In a conveying system, the combination of a subway running beneath a pile of material to be conveyed and provided with airtight bottom, sides and ends; hoppers emptying from said pile into the top of said subway g conveyers mounted in said subway and cooperating.;r withv said hoppers; and means for causing air to pass through said pile and subway.

2. In a conveying system, the combination of a subway running beneath a pile of material to be conve Yed and provided with air tight bottom, si es and ends, said ends being adjustable; conveyers mounted in said subway and cooperating with hoppers; said hoppers emptying from said pile into the top ofsaid subway; and means for causing air to pass through said pile and subway.

3. In a conveying s stem, the combination of a conduit arran e under,apile of materail ito be conveye and open to the atmos; phere on only the side opposed to said material; conveying apparatus in said conduit; and means for drawing air through said pile 3f material by exhausting air from said conuit.

4. In a conveying system, the combination of a conduit arranged under the pile of material to be conveyed conveying apparatus in said conduit; and means for forcing a tuid thrlough said conduit into said pile of materia 5. In a conveying s Ystem, the combination of a conduit arran e under a pile of material to be conveye and open to theatmosphere on only the side opposed to said material; perforated pipes in said pile, said pipes opening into said conduit; an air-pump connected with said ipes by means of said conduit; and valve connections between said pipes and a Water-supply pipe; and said water-su ply pipe.

6. n a conveying system, the combination of a conveying apparatus beneath a pile of material lo be conveyed; a series of perforated pipes distributed in said pile; and a pump connected with said pipes.

7. In a conveying system, the combination of a subway runnin eneath a pile of material to be conveye a series of erforated pipes distributed throughout said) pile and pro'ectingr into said subway through the roo thereof, said pipesbein provided with flexible joints above said mog; conveying apparatus in said subway; and a pump connected with said subway.

In testimony whereof I hereunto set my hand this 30th day of March, A. D. 1906.

RUTGER B. GREEN. Witnesses:

LOYD WILSON, H. W. SHxELns. 

